HP 83236B S Interface manual Main menu, enter the Base Station Channel number

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Chapter 2, Making Measurements

Receiver Sensitivity

Steps	1	Connect the equipment as shown in figure 19.
	2	In the main menu, enter the Base Station Channel number.
	3	Scroll to and select Setup CDMA Generator.
	4	Scroll to RF Level and enter the signal generator level for your sensitivity
		measurement (in dBm).
	5	Scroll to and set the Generator Mode to Data.
	6	Scroll to and set the RX PN Offset, typically to 0.
	7	Scroll to and set the Data Source to Random.
	8	At this time, the CDMA generator is sending random data at the level you entered in
		step 4.
	9	You can now read the calculated FER from the PC or other means.
	10	If desired, use the RF Level selection to change the signal strength and read the
		resulting FER.
	11	To return to the main menu, press the Main Menu (k5) key.

Figure 20
Notes	The cable loss (including losses through splitters, couplers, and so forth) entered
	into the Configuration Information Menu screen is taken into account
	when signal generator RF level settings are made. The level at the PCS Interface
	RF IN/OUT port is increased by the loss amount so the displayed RF level
	indicates the true level delivered to the base station’s receiver test port(s).
	The field RX PN Offset is provided for you to change the offset for your
	testing, if required. Normally, mobiles transmit on system time which
	corresponds to an offset of 0 (the default value in the Software menu).

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Contents CDMA/PCS Base Station Test Software, User’s Guide Restricted Operating Overview Conventions Used in this Book Contents Making Measurements Receiver Sensitivity Operating Overview Setting the Test System Beep Glossary Index Getting Started Introduction You must supply Required EquipmentSynth REF Load and Run the CDMA/PCS BS Test Software Tests Main Menu screen CDMA/PCS Test Software main menu features Select Configuration Information Menu Configure the SoftwareScroll to and select your band of interest User k1 If You Had ProblemsPerform Cdma Tests Perform Cdma Tests Making Measurements Making Measurements Transmitter Measurements Receiver Measurements Other OverviewRequirements Average PowerOverview Information Menu under TX Measurement Path Loss StepsModulation Quality Rho Measurement not Correlating in , Troubleshooting, on Code Domain Power Menu Code Domain Timing Details on the use of the Code Domain Analyzer screen Code Domain Phase Already selected Analyzer Transmit SpectrumSteps Go to Spectrum Analyzer @ Present Chan Steps Go to Spectrum Analyzer & Enter Freq Transmit Spectrum Receiver Sensitivity Main menu, enter the Base Station Channel number Receiver Performance in Additive Noise Error Rate FER is measured at each Eb/No levelEb/No Level Search for PN Offset PN Offset not Found Check Even-Second Clock Check for a valid clock signal from the base stationCorrelating in , Troubleshooting, on Check Even-Second Clock Operating Overview Reference ConfigurationInformation To select a new PCS Band Selecting a PCS BandChannel plans for PCS Band selections You must know the following loss values Compensating for TX and RX Measurement Path LossBeep Saving Configuration Information to MemoryRequirements Steps Loading Configuration Information from MemoryPurging Configuration Information from Memory Autostart Feature Using AutostartTurning On Turning OffConnections Viewing Instrument ConnectionsSetting the Test System Beep To Memory on Cdma Base Station Operating Overview Troubleshooting Troubleshooting Memory Overflow Errors Errors When Loading and Running the SoftwareTest System Configuration Errors at Runtime Compensation not performed. Check Duplex OUT cable. Retry? Errors When Loading and Running the Software Cdma Measurement not Correlating Errors While Attempting MeasurementsErrors While Attempting Measurements Incorrect Base Station Channel entry Frame Error Rate Receiver MeasurementsErrors While Attempting Measurements Questionable Measurement Results Average PowerCode Domain Rho MeasurementsMeasurements Receiver TestsSensitivity tests random data not selected for signal source Questionable Measurement Results Glossary Glossary Modulation Quality See Rho Glossary Glossary Glossary Index Index FER Index Oqpsk PCS Qpsk UCT Walsh chip